title: Comparison of environmental tobacco smoke (ETS) concentrations generated by an electrically heated cigarette smoking system and a conventional cigarette.
abstract: Smoking conventional lit-end cigarettes results in exposure of nonsmokers to potentially harmful cigarette smoke constituents present in environmental tobacco smoke (ETS) generated by sidestream smoke emissions and exhaled mainstream smoke. ETS constituent concentrations generated by a conventional lit-end cigarette and a newly developed electrically heated cigarette smoking system (EHCSS) that produces only mainstream smoke and no sidestream smoke emissions were investigated in simulated "office" and "hospitality" environments with different levels of baseline indoor air quality. Smoking the EHCSS (International Organisation for Standardization yields: 5 mg tar, 0.3 mg nicotine, and 0.6 mg carbon monoxide) in simulated indoor environments resulted in significant reductions in ETS constituent concentrations compared to when smoking a representative lit-end cigarette (Marlboro: 6 mg tar, 0.5 mg nicotine, and 7 mg carbon monoxide). In direct comparisons, 24 of 29 measured smoke constituents (83%) showed mean reductions of greater than 90%, and 5 smoke constituents (17%) showed mean reductions between 80% and 90%. Gas-vapor phase ETS markers (nicotine and 3-ethenylpyridine) were reduced by an average of 97% (range 94-99%). Total respirable suspended particles, determined by online particle measurements and as gravimetric respirable suspended particles, were reduced by 90% (range 82-100%). The mean and standard deviation of the reduction of all constituents was 94 +/- 4%, indicating that smoking the new EHCSS in simulated "office" and "hospitality" indoor environments resulted in substantial reductions of ETS constituents in indoor air.
authors.affiliation: Philip Morris Products S.A., PMI Research & Development, Quai Jeanrenaud 3, 2000 Neuchâtel, Switzerland. Anthony.Tricker@pmintl.com
authors.forename: Anthony R
authors.initials: AR
authors.lastname: Tricker
authors.forename: Matthias K
authors.initials: MK
authors.lastname: Schorp
authors.forename: Hans-Jörg
authors.initials: HJ
authors.lastname: Urban
authors.forename: Donald
authors.initials: D
authors.lastname: Leyden
authors.forename: Heinz-Werner
authors.initials: HW
authors.lastname: Hagedorn
authors.forename: Johannes
authors.initials: J
authors.lastname: Engl
authors.forename: Michael
authors.initials: M
authors.lastname: Urban
authors.forename: Kirsten
authors.initials: K
authors.lastname: Riedel
authors.forename: Gerhard
authors.initials: G
authors.lastname: Gilch
authors.forename: Dinamis
authors.initials: D
authors.lastname: Janket
authors.forename: Gerhard
authors.initials: G
authors.lastname: Scherer
mesh_terms: D000328:Adult; D000368:Aged; D016902:Air Pollution, Indoor / Q000032:analysis; D002245:Carbon Dioxide / Q000032:analysis; D002248:Carbon Monoxide / Q000032:analysis; D004560:Electricity; D004784:Environmental Monitoring / Q000379:methods; D062665:Epidemiological Monitoring; D005260:Female; D005740:Gases / Q000032:analysis / Q000737:chemistry; D006801:Humans; D007390:International Agencies / Q000458:organization & administration / Q000592:standards; D008297:Male; D008875:Middle Aged; D009538:Nicotine / Q000032:analysis; D009569:Nitric Oxide / Q000032:analysis; D009585:Nitrogen Dioxide / Q000032:analysis; D010316:Particle Size; D011725:Pyridines / Q000032:analysis; D012107:Research Design; D012906:Smoke / Q000032:analysis; D012907:Smoking / Q000009:adverse effects / Q000453:epidemiology*; D014028:Tobacco Smoke Pollution / Q000032:analysis*; D014753:Vinyl Compounds / Q000032:analysis; D014835:Volatilization
chemical_list: D005740:Gases; D011725:Pyridines; D012906:Smoke; D014028:Tobacco Smoke Pollution; D014753:Vinyl Compounds; D002245:Carbon Dioxide; D009569:Nitric Oxide; D009538:Nicotine; D002248:Carbon Monoxide; C076387:3-vinylpyridine; D009585:Nitrogen Dioxide